A338118 a(n) = Product_{k = n+1-A336346(n)..n} A336346(n).

1, 2, 4, 12, 6, 18, 72, 8, 24, 96, 36, 144, 192, 48, 720, 10, 30, 120, 600, 60, 45, 27, 108, 540, 240, 320, 1600, 2000, 75, 300, 1500, 9000, 90, 54, 216, 1080, 900, 400, 7200, 480, 384, 1920, 2400, 14400, 3000, 3750, 22500, 4500, 27000, 189000, 14, 42, 168

Offset

1,2

Comments

All terms are composite except a(1) = 1 and a(2) = 2.

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, Colored logarithmic scatterplot of the first 25000 terms (where the hue is function of A336346(n))

Rémy Sigrist, PARI program for A338118

Example

A336346(4) = 3, so a(4) = A336346(2) * A336346(3) * A336346(4) = 2 * 2 * 3 = 12.

Prog

(PARI) See Links section.

Crossrefs

Cf. A336346.

Sequence in context: A137369 A334766 A336847 * A294063 A290096 A261892

Adjacent sequences: A338115 A338116 A338117 * A338119 A338120 A338121

Keyword

nonn

Author

Rémy Sigrist, Oct 21 2020

Status

approved